# Zoom meeting sample javascript giving error

**URL:** <https://devforum.zoom.us/t/zoom-meeting-sample-javascript-giving-error/89473>\
**Category:** Web\
**Created:** [June 1, 2023, 2:23pm UTC](https://devforum.zoom.us/t/zoom-meeting-sample-javascript-giving-error/89473 "2023-06-01T14:23:18Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![j.schoenemeyer](https://avatars.discourse-cdn.com/v4/letter/j/f9ae1b/32.png) [@j.schoenemeyer](https://devforum.zoom.us/u/j.schoenemeyer)\
**Post date:** [June 2, 2023, 4:44am UTC](https://devforum.zoom.us/t/zoom-meeting-sample-javascript-giving-error/89473/4 "2023-06-02T04:44:20Z")

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have a look - at the end is a working php function for creating the signature

> [@Client SDK Invalid Signature errorCode:200 PHP](https://devforum.zoom.us/t/client-sdk-invalid-signature-errorcode-200-php/85056):
>
> Hello Everybody Description I need to update a JWT app to SDK meetings app before deprecation. I did create a new SDK app from Marketplace and I got a new Client Id and Client secret to use. Following the instructions on: [https://marketplace.zoom.us/docs/guides/build/jwt-app/jwt-app-migration/](https://marketplace.zoom.us/docs/guides/build/jwt-app/jwt-app-migration/) I replaced api key and secret with the new Client id and Client secret and updated signature generation with the new keys. I tested the new credentials with the sample app zoom-sdk-web-2.10.1, whic…

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